Brick wall



(No Model.)

- J. MOMURTRY.

BRICK WALL. Y No. 412,858. Patented Oct. 15, 1889..

UNITE STATES PATENT OFFICE.

J OHN- MCMURTRY, OF LEXINGTON, KENTUCKY.

BRICK WALL.

SPECIFICATION forming part of Letters Patent No. 412,858, dated October 15, 1889. Application filed March 22, 1839. Serial No. 304,377 (No model.)

-T0 all whom it may concern.-

Be it known that I, JOHN MCMURTRY, a citizen of the United States, residing at Lexington, in the county of Fayette and'State of Kentucky, have invented a certain new and useful Improvement in the Construction of BriekWalls, whereby I am enabled to greatly retard or prevent the passage through the same of heat, cold, or moisture, and thereby get a stronger wall than is ordinarily built, even in walls of fifty per cent. additional thickness, and lessening the cost of building brick walls in nearly the same proportion; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

lileretofore parties, for the sake of economy, have built their outside walls one brick thick, calling them nine-inch walls, and with heading-courses every sixth course in height, and thus subject themselves to the great annoyance of having (at every beating rain) damp walls, especially at the heading-courses of the brick, that convey the moisture through the wall, as above named.

My improvement enables any builder to build a one-brick or nine-inch wall as strong as the one-and-a-half-brick walls, and entirely free from moisture passing to the inside of thewall, and also be more secure against heat and cold than with the one-anda-halflbrick wall when built in the ordinary way.

To carry my invention into effect, I make, say, one-inch space (more or less) between the out and in side courses of brick, laid in what is termed stretchers, and the next course in whatis termed headers and stretchers, taking care to break the joints of the previous course, and so continue alternately until the top is reached, and thus making a binding-course, with headers every other course, all as will readily be understood by reference to the accompanying drawings, in which- Figure 1 represents the top view of the brick wall built with the space named between the out and in side courses, showing the heading-courses, as described, and showing that the headers come even with the outside of the wall, and the inside ends fall short of the inside course equal to the space left between the out and in side courses, as above described, and said space is marked 0 in the several figures, which, after the house is rooted in, must be filled with a proper of the heading-courses on the inside, as above described. 7

I am aware that What is termed hollow brick walls are not new, but they have always been built not less than one and a half brick in thickness, and necessarily costing fifty per cent. more than the one-brick or nine-inch wall.

I am also aware that one-brick or nine-inch walls have been stripped or studded inside, and lathed and plastered, and, although dampness does not show on the plastering inside, yet it is not only expensive, but the plastering on the laths is less firm and very much inferior to plaster on the solid brick wall, to say nothing about the studding, &c., being a harbor for rats, the.

The construction of header and stretchers and stretchers alternately may be varied that is, the course of headers and stretchers may be every other course, or every third or fourth or other numbered course, provided it continues a thorough bonding of the wall Having fully described my invention, What stretchers in this course being separated, as in I0 I desire to claim and secure by Letters Patthe first-mentioned courses, the spaces left by cut is the headers on the inside face of' the Wall A one-brick Wall constructed With courses being filled With good cement, as and for the 5 or series'of adjacent courses of inside and purposes set forth.

outside stretchers, separated by a space h of JOHN MOMURTRY. one inch, (more or less,) and a course consisting Vitnesses: of stretchers and headers interposed between F. P. SMITH,

the aforesaid courses or series of courses, the G. D. WILGUS. 

